Chart Review Lab
Checking datafeed Evidence workspace Local review layer

Evidence Bench

Alpaca annotation demo

A chart-review workspace for explicit overlays, inspectable values, source metadata, and exportable evidence artifacts.

Main page Widget view Evidence report Datafeed status
Source /api/datafeed/history
Latest bar Waiting for data
Review window Not loaded
Loading Alpaca-backed candles

Fetching OHLCV through the existing server-side UDF datafeed.

Data path: browser to Chart Review Lab UDF endpoint to Alpaca Market Data. Review overlays are deterministic artifacts for inspection only.